Valve kharnak thilri cu valve kharnak ah a biapi tukmi a si. Valve kharnak thilri hna cu zeidah an si? Valve kharnak kuang thilri pawl cu thir le thir a si lomi phun hnih ah ṭhen an si ti kan hngalh. A tanglei ah hin kharnak thilri phunphun hmannak dirhmun tawite in langhter a si, cun a tlangpi in hmanmi valve phun zong a si.
1. Synthetic rubber
Synthetic rubber i a tlingmi thilri hna cu chiti doh khawhnak, lumnak doh khawhnak le rawhnak doh khawhnak hna cu natural rubber nakin a ttha deuh. A tlangpi in, sermi rubber hmannak lumnak cu t≤150°C a si, cun natural rubber lumnak cu t≤60°C a si. Rubber cu globe valve kharnak caah hman a si,rubber tthutnak kutka valve, diaphragm valves,rubber a tthumi hlinghro valve, rubber tthutnak ah a tlikmi check valve (check valves), pinch valves le a dang valve pawl cu nominal pressure PN≤1MPa he an si.
2. Nylon
Nylon cu a tlawmmi hnahnawhnak coefficient le rawhnak doh khawhnak ttha a ngeimi sining a ngei. Nylon cu a tlangpi in ball valve le globe valve caah hman a si i lumnak t≤90°C le nominal pressure PN≤32MPa a si.
3. PTFE
PTFE cu vawleicung valve caah hman a si bik,kutka valves, ball valves, tbk. cu lumnak t≤232°C le a tlawmbik hneknak PN≤6.4MPa he.
4. Thir
Cast iron cukutka valve, globe valve, plug valve, tbk. caah lumnak t≤100°C, nominal pressure PN≤1.6MPa, gas le oil.
5. Babbitt cawhmi
Babbitt alloy cu ammonia globe valve caah lumnak t-70~150°C le nominal pressure PN≤2.5MPa he hman a si.
6. Dar cawhmi
Dar cawhmi caah hmanmi thilri hna cu 6-6-3 tin dar le 58-2-2 manganese dar an si. Dar cawhmi cu a rawkral khawhnak a ttha i ti le meikhu t≤200°C le a tlawm bik hneknak PN≤1.6MPa he aa tlak. ah hman a si tawnkutka valves, vawlei cung valve,check valves, plug valve, tbk.
7. Chrome thir thir
A tlangpi in hmanmi chromium stainless thir phun cu 2Cr13 le 3Cr13 an si, cu hna cu an hmit cang i an lumter cang, cun rawkralnak a doh khomi an si. Ti, meikhu le petroleum tibantuk media caah valve ah hman a si tawn i lumnak t≤450°C le nominal pressure PN≤32MPa a si.
8. Chromium-nickel-titanium stainless steel
Chromium-nickel-titanium stainless steel ah a tlangpi in hmanmi phun cu 1Cr18Ni9ti a si, cucu rawkralnak a doh khawhnak, a rawhnak a doh khawhnak le lumnak a doh khawhnak a ttha. Globe valve, ball valve, tbk caah hmanmi, lumnak t≤600°C le nominal pressure PN≤6.4MPa a ngeimi steam, nitric acid le a dang media caah aa tlak.
9. Nitrided thir
Nitrided thir a tlangpi in hmanmi phun cu 38CrMoAlA a si, cucu carburizing thlopnak hnu ah rawkralnak a doh khawhnak le a rawhnak a doh khawhnak a ttha. Power station gate valve ah lumnak t≤540°C le PN≤10MPa tlawmtam he hman tawnmi a si.
10. Boronizing
Boronizing nih cun valve pum asiloah disc pum thilri chungin kharnak cunglei kha direct in a thlen, cun boronizing cunglei thlopnak a tuah, kharnak cunglei cu a rawkral khawhnak a ttha. Power station thli laknak valve ah hmanmi.
Post caan: Jun-10-2022
